Apply semi-open vocabulary patterns

This is a downstream application of two proposals:

* UCO CP-100 implemented the suggested-value enforcement pattern for
  semi-open vocabularies.
  This was a part of UCO 0.8.0.
* UCO Issue 406 adjusted the implementation pattern from UCO CP-100 to
  account for an OWL requirement on `rdf:List` usage.
  This has been approved for UCO 1.0.0.

A third proposal adjusting the CASE vocabulary namespace, UCO Issue 435,
would also apply, but has not had an approval vote yet.  Due to vote and
other Git logistics, that will be handled separately.

No effects were observed on Make-managed files.

References:
* [UCO OC-12] (CP-100) UCO's idea of "Open vocabulary" does not agree
  with its implementation with owl:oneOf
* ucoProject/UCO#406
* ucoProject/UCO#435

Signed-off-by: Alex Nelson <[email protected]>

ontology/investigation/investigation.ttl

@@ -140,9 +140,39 @@ investigation:Investigation
 		] ,
 		[
 			sh:datatype vocabulary:InvestigationFormVocab ;
+			sh:message "Value is outside the default vocabulary InvestigationFormVocab." ;
+			sh:path investigation:investigationForm ;
+			sh:severity sh:Info ;
+		] ,
+		[
 			sh:maxCount "1"^^xsd:integer ;
 			sh:minCount "1"^^xsd:integer ;
 			sh:nodeKind sh:Literal ;
+			sh:or (
+				[
+					sh:datatype vocabulary:InvestigationFormVocab ;
+				]
+				[
+					sh:datatype xsd:string ;
+				]
+			) ;
+			sh:path investigation:investigationForm ;
+		] ,
+		[
+			sh:message "Value is not member of the vocabulary InvestigationFormVocab." ;
+			sh:or (
+				[
+					sh:datatype vocabulary:InvestigationFormVocab ;
+					sh:in (
+						"case"^^vocabulary:InvestigationFormVocab
+						"incident"^^vocabulary:InvestigationFormVocab
+						"suspicious-activity"^^vocabulary:InvestigationFormVocab
+					) ;
+				]
+				[
+					sh:datatype xsd:string ;
+				]
+			) ;
 			sh:path investigation:investigationForm ;
 		]
 		;
@@ -266,7 +296,13 @@ investigation:investigationForm
 	a owl:DatatypeProperty ;
 	rdfs:label "investigationForm"@en ;
 	rdfs:comment "A label categorizing a type of investigation (case, incident, suspicious-activity, etc.)"@en ;
-	rdfs:range vocabulary:InvestigationFormVocab ;
+	rdfs:range [
+		a rdfs:Datatype ;
+		owl:unionOf (
+			vocabulary:InvestigationFormVocab
+			xsd:string
+		) ;
+	] ;
 	.
 
 investigation:investigationStatus